Elbow for conduits.



- V VNO. 834,687'.

To ZZfwz/om, it' may concern:

` residentofreahiimboy,

- following is a specification.

^ l inafter set forth responding partsin the several views.

. providing thereby a substantially V-shaped 'of New York city,

. elbows that are withl c`onduits v the coversof the conduits connected with the 2O ing drawings, forming 30 detail perspectiveL View of the .corner-pieceat yILNTTED STATES PATENT oEEroE.

eIfRENoE c. sIBLEY,

or PERT-H AMBoY, NEW JERSEY, .AND GEORGE A. LUTZ. or NEW-YORK, N. Y, I

" ELBow Fon lcoNDUn-s.

SpecificatidiiV o f Letters Patent.

Patented oct. 3o, 190e. mammina 'october 26,1905. seriarnazsam.

Beit known that we, CLARENCE C. SIBLEY., Middlesex county, A. LUTZ, a resident borough of Brooklyn, N ew York, citizensof theUnited States, have in vented certain new and useful Improvements in Elbows for Conduite', of which the of the lank, the wings 4 being located at a suitable distance from the edges 3.a ofthe cutout part' 3, providing spaces at`6, and on the side opposite the cut 3 are transverse slits 7, forming a wall 8, and at the ends of the bottom wall 2 one ormore pron s 9 may be provided that are adapted to be N ew Jersey, vand GEORGE Our inventionA relatesto improvements in adapted for use in connection for electric wires, such conduits beingof the class shown in the patent to -E.`D. Page, dated February, 5, 1901, No. 667,567 fand the invention has for'its object topermit wires-to be drawn around the inner. angleoredge of the elbow without injury to the insulation on' the wires, while permitting duits or fastening the latter firm-.ly to the el- .bow. The outer edges the dotted lines 10 1 1 into channel form, and

theny the blank so formed is bent ed es 2 of thebottom 2 ma meet or abut, as in igs. 1, 4, and 5, the wal 8 being thereby ends ofthe elbow to be pushed along the latter, so as to 'completely cover theangular channel therein-and protect the contained wires.

, The invention coinprisesthe novel details of improvement that will be more fully hereand then pointed out in the 5* thereby bein claims.

Reference is to be. had to the accompanypart hereof, wherein- Figurel is a plan view of an elbow embodying our invention. Fig` 2 is an edge View thereof locking from the bottom of Fig. 1. Fig. 3 is a, sectional view on the line 3 3 in Fig. 1.A Fig. 4 is a plan view, partly-in section, on the line 4 4 in Fig. 2. Fig. .5 is an inverted plan view of the elbow. Fig. 6 is a Wings or vwalls 4 are at alrdistancer other at the inner angle, V.owing to the cutaway parts or spaces 6, and we provide for tl.is space a iilling piece or block 12, lwhich has a rounded corner at 12, that is located below the plane of the roovesin the side walls and is diametricaly opposed to the asharp corner 8b, whereby drawn around such rounded corner 12*JL withyout injury to the insulation. (See Figs. 4 and 6.) In making the-corner-piece 121We cut a sheet-blank into suitable form and bend itto provide the rounded corner 12a' portions 12b, (shown at right angles to each other above the corner 12%) forming a horizontally extending lip 12", outwardly e'xtending lugs 12d, and an inwardly-extending web. or. lug 412".-.under the corner '12%4 corner-piece is .fittedin the corner vor s the inner angle-of the elbow, and.l Fig. 7 is a face viewV of a blankfrorn which the main part of the elbown. ay be produced.

4Sinilar numerals of reference indicate` cor- As shown in the drawings, the elbow 1 is made generally in the for..A of sheet neta] bent up to form a channel having the bottor 2 and side walls, the upper portions of which walls are bent to forr.; grooves to'recive the cot'ers from conduits shaped in cross-section substantially the saine as the elbow 1, such asv arevmore particularly set forth in said patent to Page. In producing the elbow wetake a blank .of suitable sheet metal and stamp or ,cut the same substantially as shown in Fig. 7

pace

openin at 3 side Wings 4.5 aty opposite ends elbow so as toully cover As shown in F ig. 4, the inner ed es ofA the .p

om each the Wires may be4 gro'oved ent and passed through slots in the adjacent ends of the conv 6 5"( bent into groove format 48L 5, and the outer oove j form at 8a, and the wings 4 5and wal 8 are".

substantially at y/right angles, so that the likewise bent', forming a shape angle at 8b, the I g together the channels of between thefwalls or wings 4, the rounded .This p corner 12 entering said space, and the lugs 12d overlie said wines and are securedA thereto by'rivets or the lilie 13, and the webor lug 12b; is' laidv under the cornerl of the bottom bvwall 2 to cover the space at the inner corner, said corner-piece serving thereby to strengthen the elbow. The grooves 12b of the corner-piece 12' are o posed to the corresponding grooves 8*1 an receive the covers .duits may be passed into the elbow between the wings4 ,5, the grooves 4a 5L receiving the .corresponding grooved portions on the ,con

. duits, so that the covers from the conduits may slide directly therefrom into the corresponding grooves 8a 12b and the prongs 9 be bent p throughslots in the bottom walls of the fconduit and folded back to firmly connect'the conduits to the elbow, or the grooves J4l 5El may aline with the corres onding 'grooves 8a 12b and the'conduits be rought against the ends of the elbow and held by the prongs 9, -If preferred, the prongs 9 may be V the corner 128L without tion.

Having now describedour invention, what sow dispensed with and the ends of the conduits vconnected with lthe 'ends of the elbow by a suitable; bond or clamp.

-Anelbow constructed as. above described r will be strong andserviceable for the urpose .intended,and.byhaving the rounde cornery 12af -beneath the' plane of the grooves the coivers from the conduits may be passed to the full length along the elbow to,.cover the wires, while the latter may be drawn around injury to the` insula- While we have shown a referred form of making a 'blank for the, el ow and bending the same, as described, .it will be understoodthat we do not limitour invention to the 'parlticular details shown-and described, as they may be varied 'without departing from the spirit lof the invention.`

we claim'iswith opposed grooves "and'havinga wall bent having a rounded corner at the inner side, substantially as'described. V

v2. elbow comprising material in channel' form having members extending'at an angle to each other, the, outeiside wall being bent into's'harp angle'and the oppose'dinner. corne'nbeing' rounded, substantially as described?v 3.. An elbow .comprising-material bentinto channel form Ahaving a bottom and sidewalls, A

and an` open ;to the 'sidewalls having opbeing formed between the inner side wa I. 'Anelbow of the class-described eorn- V prising `material-in channel form .provided provided .with scribed.'

posedgroeve's, t couter side wall being bent 10, An elbowfcornprismg a piece-of metal .a cornenpiece having a. rounded surface being set m said space and secured to the material ofthe elbow, thc opposed outer walli being bent at an angle, substantially as'described.

6. An elbow comprising material bent. to form a bottom-and side walls providing two members at an angle to each other, a s )ace ils, a corner-piece having a rounded surface being set in said space andsecured to the material of the elbow, the opposed outer walls being bent at an angle, said corneriece having' grooves above the rounded su ace,'and saidwalls having grooves. substantially as def-- described. c

7p An elbow comprising material bent to forni a bottom and side walls provid-ing two members at an angle tocach other, a space being formed lbetween the inner side walls, a corner-piece having .a rounded surface being set in said space andsecured tothe material of the elbow,the opposed outer walls being bent at an angie, said corner-piece having grooves above the rounded surface, and a lug beneath the rounded surface extending under the bottom, and said walls having grooves, substantially as described.

8. An elbow comprising a pieceof metal having an angular cut in one side forming bottom members, a wall on the side opposite said cut portion, and walls at the end por-l tions .of said bottom members, said walls being bent outwardly and the whole piece bent at an angle forming two channels at an angle to each other, and a' corner-piece se-` cured inthe space betwcentwo. side walls,

substantially as described. into a ,sharpiCQI'ner at the outer side andalso- 9.. An elbow comprising. a piece of metal having an angular cut infone side forming bottom members, a wall on .the side opposite said. cut portion, and walls at the end portions of said bottom members, said walls being bent outwardly and thwhole piece bent at an angle forming two channels at an- 'bottom members, a Wall on the side op ositev aving a lug extended under, thffb having' anangularu out in one-side forming rovided with grooves,l said @exiger-piece 1Q said out portion', and .Walls at. the en pormembers, substantially es described,

tions of said `bottom members, said Wallsv being bent ol'ltwerdly` and the whole piece bent at al1-angle fn'ning two channels at an angle to each other., and a cornerriece sev .Witnesses2 cured in the space between twosi e W& lls, T. F. BOURNE,

x the'side walls sindv said corner-piece being M. HOLLINGSHEAD. 

